类型错误：使用 javascript 删除行时无法读取 null 的属性“行”
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Type error: cannot read property 'rows' of null when deleting a row using javascript
提问by Krishna
I have this javascript
我有这个 javascript
function deleteRow(tableID)
{
try {
var table = document.getElementById(collct_table_body);
var rowCount = table.rows.length;
for(var i=0; i<rowCount; i++) {
var row = table.rows[i];
var chkbox = row.cells[0].childNodes[0];
if(null != chkbox&& true == chkbox.checked) {
if(rowCount <= 1) {
alert("Cannot delete all the rows.");
break;
}
table.deleteRow(i);
rowCount--;
i--;
}
}
}catch(e) {
alert(e);
}
But when I try to delete a row using this it shows an error "cannot read property 'rows' of null type error"
但是当我尝试使用它删除一行时，它显示错误“无法读取空类型错误的属性‘行’”
Is there any error in this javascript Im using?Can some one help me out?
我使用的这个 javascript 有什么错误吗？有人可以帮我吗？
回答by Krishna
You're missing the quotes
你缺少引号
document.getElementById("collct_table_body");
or, may be this is a variable (which I don't see in your code, global var?? we will never know)
或者，这可能是一个变量（我在你的代码中没有看到，全局变量？？我们永远不会知道）
var collct_table_body = "someID";
